Kalk [kalk] is a settlement in the administrative district of Gmina Stara Kiszewa, within Kościerzyna County, Pomeranian Voivodeship, in northern Poland. It lies approximately 2 kilometres (1 mi) west of Stara Kiszewa, 18 km (11 mi) south-east of Kościerzyna, and 54 km (34 mi) south-west of the regional capital Gdańsk.

For details of the history of the region, see History of Pomerania.